Pipe-wrench.



P. BROWN.-

PIPE WRENCH. APPLICATION FILED AUG.I6. 1915.

Patented Jan. 25, 1916.

PETER BROWN, OF SELLECK, NASHINGTON.

PIPE-WRENCH.

Specification of'Letters Patent.

Patented Jan. 25, 19116.

Application filed August 16, 1915. Serial No. 45,760.

To all whom it may concern:

Be it known that 1, PETER BROWN, a citizen of the United States, residing at Selleck, in the county of King and State of VVashingtomhave invented certain new and useful Improvements in Pipe-\Vrenches, of which the following is a specification.

This invention relates to the class of wrenches and more particularly relates to i that type of wrench having a fixed jaw and a jaw which may be adjustably related thereto by a pin and slot movement.

As a principal object, it is contemplated by this invention *to provide a wrench including a shank, a fixed jaw head formed in continuance of the shank and longitudi-.

the bayonet slots being adapted to receive in 4 turn a pin carried by the fixed jaw of the wrench in maintaining the adjustable jaw in the desired position.

It is also an important object of this invention to provide a pipe wrench having a fixed jaw head slotted for the reception of a slidable jaw and also formed to removably accommodate a toothed jaw, particularly adapted to be used when the wrench is being employed as a pipe wrench.

The above and additional objects which will be hereinafter more specifically treated are accomplished by such means as are illustrated in the accompanying drawings de scribed in the following specification and then more particularly pointed out in the claims which are appended hereto and form a part of this application.

lVith reference to the drawings, wherein there is illustrated the preferred embodiment of this invention as it is reduced to practice, and throughout the several viewsof which like characters of reference desigjaw adapted to be associated with the fixed jaw head of the wrench.

The wrench of this invention includes a shank 5 which at one extremity terminates in the rounded handle grip 6 and at the other extremity is enlarged, in the manner denoted by the numeral 7, for integral connectionwvith the jaw head 8 which is formed in continuance of the shank. The jaw head 8 is formed with a longitudinal slot 9 which accommodates the shank extremity 10 of a slidably adjustable jaw, such jaw being laterally enlarged in the manner designated 1-1 to form a jaw head 12 to coact with the jaw head 8. Preferably the jaw head 12 is provided with an accurately turned lip 13 for contact with cylindrical objects.

The shank 10 of the slidable jaw is provided with an elongated slot 14 with which there communicate at various points, the several bayonet slots 15. A pin-l6 transfixes the fixed jaw 8, extending across the slot 9 and being placed, when the wrench is assembled, in the adjustable jaw slot 14. By so manipulating the slidable jaw that the pin 16 is made to enter the desired bayonet slot 15, the jaws of the wrench may be separated tothe proper distance required to engage the work. i

The outer extremity of the fixed jaw head 8 is rounded away from contact with the slidable aw and is provided with a'fiattened recess 17 in which may be removably seated the jaw portion 18 illustrated in Fig. 3. This jaw portion is formed with a flattened side for seating in the recess 17 and is also formed with an arcuate face provided with the ratchet like corrugations l9, peculiarly fitted for permitting the wrench to exert a firm engagement with pipes or other cylindrical work. If desired the recess 17 and the jaw portion 18 may be formed with correspondingly beveled edges, while a tongue 20 projects from one extremity of the jaw portion and is suitably aper tu'red for the reception of any desirable fastening means whereby the jaw portion may be secured within the extremity of the aw head 8.

From the foregoing it will be seen that this invention provides a wrench having a particular adaptability foruse upon cylindrical work. bayonetslot adjustment provided between the fixed and sliding jaws of the wrench, the latter may be speedily engaged with the work in the proper manner. it should be Byemploying the pin and noted that rotation of the shank 5 in a clockwise direction (referring to F ig. 1) will have the effect of tightly engaging the wrench. with the work indicated in dotted lines, while rotation of the Wrench shank in the opposite direction will at once disengage it without effecting the adjustment between the jaws, the pin 16 acting, of course, as the pivot for these-rotational movements. Provision of the removable jaw portion 18 enables this quickest-wearing part of the wrench to be readily replaced without discarding an otherwise useful tool.

While in-the foregoing, however, there has thus been illustrated and described the preferred embodiment of this invention, strict interpretation of the latter as regards future adaptations should be made only in the light of the appended claims.

What is claimed is I 1. In a wrench, a shank, a handle grip formed upon one end of said shank, a slotted jaw enlarged upon the other end of said shank and provided with a slot, 2. slidable jaw also provided with a slot, and movable in the slot of the fixed jaw, bayonet slots being provided in said sliding jaw in communication with the first said slot thereof, and a pin transfixing the slots of both jaws and having adjustable engagement with said bayonet slots.

2. In a wrench, the combination of a shank, a fixed jaw formed in continuance of the shank and longitudinally slotted, the extremity of said jaw being recessed, a slotted'jaw slidable in the slot of the fixed jaw, means carried by said fixed jaw to pro ject through the slots of both of said jaws and to ,be in adjustable relation with the movable jaw, and a removable jaw portion PETER BROWN. 

